Nortel 4050, Installation Manual

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22 Chapter 1 Overview
320846-A
Table 4 explains LED status indicators for ports 1 and 2. Table 5 explains LED
status indicators for ports 3 and 4.
Table 4 Ports 1 and 2 LED status indicators
Port speed Left LED Right LED Status
10 Mb/s Off Green flashing Port operates at 10 Mb/s. Cable connection
between the port and network device (switch, hub,
or router) is working. Port and network devices are
receiving power and the NIC driver is operating
properly.
When the right LED is flashing, the port is sending
or receiving network data. The flash frequency
varies with the amount of network traffic.
100 Mb/s Yellow/
flashing Off Port operates at 100 Mb/s. Cable connection
between the port and network device is good.
When the left LED is flashing, the port is sending
or receiving network data.
1000 Mb/s On or flashing On or flashing Port operates at 1000 Mb/s. Cable connection
between the port and network device is good.
When the LEDs are flashing, the port is sending or
receiving network data.
All speeds Off Off One or more above conditions is not met.
Table 5 Ports 3 and 4 LED status indicators
Port speed Left LED Right LED Status
10 Mb/s Off Green Port operates at 10 Mb/s. Cable connection
between the port and network device (switch, hub,
or router) is good. The port and network device are
receiving power and the NIC driver is operating
properly.
100 Mb/s Green Green Port operates at 100 Mb/s. Cable connection
between the port and network device is good.
1000 Mb/s Red Green Port operates at 1000 Mb/s. Cable connection
between the port and network device is good.